MicrobeWorld visits The Maloy Lab at San Diego State University to talk with Professor Stanley Maloy and three grad students, Dave Matthews, Gerardo Perez and Veronica Casas, about their research. The Maloy Lab focuses on the genetics and physiology of Salmonella and bacteriophage that infect Salmonella. Maloy and his students use a combination of genetic, molecular, biochemical, and genomic approaches to answer questions about the uptake of DNA from bacteriophage, transfer of genes between bacteria and phage, and the evolution of pathogenesis.